Circuit-breaker for automobiles.



PATENTED APR. 28,1908.

W. 0. 1101mm CIRCUIT BREAKER FOR AUTOMOBILES.

APPLICATION FILED MAY 27, 1907.

- and useful Improvements in Circuit-Break- No. senses.

To all whom it may concern:

.a specification.

sition.

provide means where y the sparking circuit UNITED STATES PATENT oHFIoE.

WILLIAM o. HORNER, or INDIAN PO IS/IN IANA.

CIRCUIT-BREAKER FOR AUTOMOBILES.

Specification of Letters Patent.

Patented April 28, 1908.

' Application filed May 27, 1807. Serial No. 375,963.

Be it known. that I, WILLIAM (J. HORNER, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented certain new ers for Automobiles, of which the following isn the operation of automobiles of the internal combustion type, wherein.the charge is fired by an electric sparking mechanism, the last chargedrawn into the cylinder is automatically nred because, while it ispossible for the operator to' break the sparking circuit, yet the switchusually provided for that purpose is generall at a point notordinarilyaccessible to the river when in driving p0 The object of my resentinvention is to will be automatically broken when the driver closes thethrottle-valve or when he returns the spark-advancing lever to zeroosition.

The accompanying drawings il ustrate an' embodiment of my invention. 4

Figure 1 is a plan, and Fig. 2 a side elevation, partially diagrammatic,of a steering head equipped with my invention.

In the drawings 10 indicates a spark plug and 11 the. sparking circuit,said circuit embodying desirable timing mechanism not shown, theordinary switch 12.

Arranged in the circuit 11 is a terminal 13 and a movable terminal 14,which contacts with the terminal 13, being held normally in contacttherewith by a spring 15. Conveniently terminal 14 may be in the form ofa pivoted lever one arm of which may be ar-. ranged in the path ofmovement of. fing-rs 16 and 17 of a throttle-valve lever 16 and a l thethrottle is closedj ltL e the sparking circuit 1.1, and thus prevent theI production of a spark within t e cylinder subsequent to that timel.Inop'eration the follolwing results are ob tained byl the use of m Tdevice. Whenever sparking circuit is automaticall broken d' no further sarks are produced -thus saving current. enever the timer lever is thrownto zero, continued running of the engine causes a charging of thecylinders without ignition and therefore the engine is ready'uponproduction of a spark to start without cranking.

' I claim as my invention:

1. In an automobile, the combination, with the sparking circuit of'aninternal combustion engine, of a s ark timer controlling lever, athrottle valve ever, and' means controlled by each of said levers forbreaking the sparking circuit when either of said levers is brought topro er position. i

2. The com ination,. with the sparking circuit of the internalcombustion engine of an automobile, of athrottle valve lever and a s arktimer lever, and means controlled by In witness whereof, I, havehereunto set my hand and seal at Indiana olis, Indiana, this twentyfirst day of May, D. one thousand nine hundred and seven:

I WILLIAM C. HORNER. [L. s.]

Witnesses:

WM. J. NEUKON, ARTHUR M. H001).

